NASA said SpaceX's Falcon 9 rocket is still scheduled to launch the company's Dragon cargo spacecraft on April 30, sending it to the International Space Station.

"The NASA and SpaceX teams are still assessing the anomaly that occurred, but I can tell you we are still tracking, as of today, for Tuesday, April 30, and that launch will be at 4:22 a.m. Eastern time," NASA spokesman Joshua Finch told reporters during a teleconference on Monday.

"April 30 is the most viable date for both NASA and SpaceX, due to station and orbital mechanics constraints," the space agency noted in an update.

On April 20, a cloud of smoke rising from test facilities at Cape Canaveral, Fla., could be seen from miles away. Reports confirmed the smoke was the result of an explosive accident involving SpaceX's Crew Dragon.

SpaceX referred to the accident an "anomaly" during the final of a series of engine test fires.

"Ensuring that our systems meet rigorous safety standards and detecting anomalies like this prior to flight are the main reasons why we test," SpaceX told UPI in a statement. "Our teams are investigating and working closely with our NASA partners."

SpaceX reported the anomaly was quickly contained and no one was injured.